Icom used glowing terms to describe their 7800 radio, terms that really
don't relate to meaningful test results. This is called specmanship. Icom
based its specs on 100kHz and 20kHz spacing as I recall, essentially
meaningless for us Orion types. Close in, as in 2kHz spacing per Sherwood
Engineerings website listed below, are impartial test results which show how
well the various receivers compare. This is where the Orion shines with the
600 Hz INRAD filter. The 7800 falls off a bit at that spacing because the
interfering signal is inside Icom's narrow roofing filter.
73,
Charlie, W0YG..>>
On 7/28/2005 12:16:17 PM, Bernard(wtrone) (wtrone@comcast.net) wrote:
> Randy: go to the following website and look at an independent review of
> may ham rigs. From these data, it would seem that the Orion is somewhat
> better.
>
> http://www.sherweng.com/table.html
>
>
> 73s,
>
>
> Bernard, WA4OEJ
>
>
> ----- Original Message -----
> From: "Randy K7RAN" <k7randy@gmail.com>
> To: "Discussion Ten-Tec Equipment of" <tentec@contesting.com>
> Sent: Thursday, July 28, 2005 6:59 AM
> Subject: [TenTec] Question re Orion vs Icom IC-7800
>
>
> > Last night I worked a very nice fellow on 40 CW who had just taken
> > delivery of his new IC-7800 yesterday. I understand that this is a
> > $10k radio (or basically 2.5 on the OCS [Orion Cost Scale], hi).
> > Afterward, I was curious and went to the Icom web site and read this
> > bit of marketing copy:
> "Icom's 40 years of analog RF circuit
> > experience combined with cutting edge digital technology results in
> > an astonishing 110dB receiver dynamic range and a +40dBm IP3 in the
> > HF bands. A first in Ham radio!"
> >
> > Questions:
> >
> > 1) How does their quote "astonishing 110db receiver dynamic range"
> > compare with the Orion's perform
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